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AJvYcCU+jgAuG9zgiQ/Pv8jXQruVKWCnwP3V24z9+yYxQF+X0XreCwnYP6TSGIj/wNeente+X50h04unVZm/5rk=@vger.kernel.org X-Gm-Message-State: AOJu0YzXjlZMIQm/gQc/EH9ySRa40DkdsvvsiqnzpWBT2DXICu0sDc6D braMUH5/AAkn4hppDSd2wKG04Qp/tttCIEut8a/bNe2c9iB+9luIz+tSfUg4Spg= X-Google-Smtp-Source: AGHT+IEEMjmiRET2kOs0GeInwrz52Oue3vtvkRG73mTQZZRLoPcG6hCze0/6KFkEbxi8zZg9lyGnbg== X-Received: by 2002:a05:6a00:1312:b0:714:15ff:a2a4 with SMTP id d2e1a72fcca58-71e1db85861mr3024260b3a.13.1728471865013; Wed, 09 Oct 2024 04:04:25 -0700 (PDT) Received: from [192.168.1.150] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71df0ccd156sm7550277b3a.57.2024.10.09.04.04.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 09 Oct 2024 04:04:24 -0700 (PDT) Message-ID: <77f16324-47e1-41e6-a9e9-2cb7cbc8d14d@kernel.dk> Date: Wed, 9 Oct 2024 05:04:23 -0600 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: AMD zen microcode updates breaks boot To: Borislav Petkov Cc: Thomas Gleixner , the arch/x86 maintainers , LKML , "regressions@lists.linux.dev" References: <91194406-3fdf-4e38-9838-d334af538f74@kernel.dk> <20240928061038.GAZved3hMSU3XahWrJ@fat_crate.local> <5fe1e264-c285-4988-b1e3-46771d07172b@kernel.dk> <20240930044313.GAZvosYZF5mHi2OZbC@fat_crate.local> <20241009091247.GCZwZJDwFETmN5pEGe@fat_crate.local> Content-Language: en-US From: Jens Axboe In-Reply-To: <20241009091247.GCZwZJDwFETmN5pEGe@fat_crate.local> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/9/24 3:12 AM, Borislav Petkov wrote: > On Mon, Sep 30, 2024 at 10:25:21AM -0600, Jens Axboe wrote: >> Hmm, seems like a pretty standard cpu and updated microcode fw, no? But >> if it's just me, we can just defer until it gets fixed, at least for >> some more rcs. I just pruned the microcode for now to work around it, as >> it's pretty annoying to forget about doing the reverts and then booting >> a broken kernel. The box takes minutes to post+boot. > > With the microcode blob removed so that no loading happens, what microcode > does this box have? > > Still 0x0aa00215? Yep, 0xaa00215 -- Jens Axboe